Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations by Graphing - Exercise Set - Page 291: 10

Answer

$(5,-2)$ is not a solution of the system.

Work Step by Step

An ordered pair is a solution to the system if it satisfies both equatons: $ \begin{array}{lllll} 4(5)-3(-2) & =26 & .... & (5) & =15-5(-2)\\ 20+6 & =26 & & 5 & =15+10\\ 26 & -26 & & 5 & =25\\ TRUE & & & FALSE & \end{array} $ $(5,-2)$ is not a solution of the system.
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